Key Takeaways Spear phishing uses researched, target-specific information that makes messages appear trustworthy, bypassing generic spam filters and human instinct. Spear phishing attackers gather information...
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Key Takeaways Spoofing attackers manipulate email headers to display trusted sender names and addresses without accessing real accounts, making messages appear legitimate. Authentication protocols are...
Key Takeaways Enterprise platforms protect against advanced persistent threats and BEC, privacy providers focus on encryption, and hygiene services prevent delivery failures and list contamination....
Key Takeaways Email logos appear primarily in signatures (professional emails) and headers (marketing emails), each with different sizes and optimization requirements. Logos should be under...
Key Takeaways Email size limits apply to the complete message, including body text, inline images, and all attachments combined. Email encoding (Base64) increases file sizes...
Key Takeaways Send your first follow-up after giving recipients a reasonable time to respond (3-5 business days); following up within 24-48 hours feels pushy except...
Key Takeaways 20–25% is a solid open rate for most marketing emails; above 40% is excellent, while below 15% can indicate potential issues. Open rates...
Key Takeaways Keep total bounce rates under 2% for a healthy sender reputation; anything above 5% indicates serious list quality issues. B2B and SaaS typically...
Key Takeaways Mobile apps restrict bulk deletion; the fastest way to delete thousands of emails requires desktop browser access. Deleted emails go to a Trash...
Key Takeaways MX records tell sending servers which mail servers accept email for your domain and the order in which they should be tried. There...
Key Takeaways Most email providers restrict attachments to 10–25MB per message, and exceeding these limits causes immediate bounces. Sharing links to files stored in Google...
Key Takeaways Email verification codes prove both that an email address is valid and that you control the inbox associated with it. Most codes expire...
Key Takeaways Machine learning handles personalization, timing, and testing at scale while marketers control messaging, goals, and brand decisions. AI models trained on lists with...
Key Takeaways Domain reputation covers email deliverability, web security, and platform trust, not just sender reputation. Establishing good domain reputation takes months of consistent behavior;...
Key Takeaways When cleaning up your email, remove promotional emails, old newsletters, and spam in bulk rather than one by one. Clean your primary work...
If you work in email marketing, you have probably encountered Gmail’s familiar message truncation notice: "[Message clipped] View entire message". At first glance, it looks...
If your email campaigns suddenly start bouncing, open rates plummet overnight, or clients report that they never receive your messages, there’s a strong chance your...
Are your emails constantly landing in spam folders or being rejected? Your domain's multiple SPF records might be the cause of the issue. Unfortunately, despite...
Want your email address to look professional? Worried you used "[email protected]" instead of "[email protected]" and now you're locked out of something important? TLDR: Email addresses...
Email needs no introduction since, for ages, it has served as one of the main communication channels for individuals and organizations worldwide, facilitating everything from...
Learn which SMTP ports to use for email delivery: 25, 465, 587, or 2525. Our guide helps you choose the right port for security and...
